DE2823493A1 - METHOD FOR CLEANING DISHES IN A HOUSEHOLD DISHWASHER - Google Patents

METHOD FOR CLEANING DISHES IN A HOUSEHOLD DISHWASHER

Info

Publication number
DE2823493A1
DE2823493A1 DE19782823493 DE2823493A DE2823493A1 DE 2823493 A1 DE2823493 A1 DE 2823493A1 DE 19782823493 DE19782823493 DE 19782823493 DE 2823493 A DE2823493 A DE 2823493A DE 2823493 A1 DE2823493 A1 DE 2823493A1
Authority
DE
Germany
Prior art keywords
water
cleaning
rinsing
amount
dishes
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
DE19782823493
Other languages
German (de)
Inventor
Walter Dipl Phys Heissmeier
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Licentia Patent Verwaltungs GmbH
Original Assignee
Licentia Patent Verwaltungs GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Licentia Patent Verwaltungs GmbH filed Critical Licentia Patent Verwaltungs GmbH
Priority to DE19782823493 priority Critical patent/DE2823493A1/en
Priority to SE7904078A priority patent/SE7904078L/en
Priority to FR7913499A priority patent/FR2427080A1/en
Priority to IT23097/79A priority patent/IT1121059B/en
Publication of DE2823493A1 publication Critical patent/DE2823493A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L15/00—Washing or rinsing machines for crockery or tableware
    • A47L15/42—Details
    • A47L15/4202—Water filter means or strainers
    • A47L15/4208—Arrangements to prevent clogging of the filters, e.g. self-cleaning
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L15/00—Washing or rinsing machines for crockery or tableware
    • A47L15/0018—Controlling processes, i.e. processes to control the operation of the machine characterised by the purpose or target of the control
    • A47L15/0021—Regulation of operational steps within the washing processes, e.g. optimisation or improvement of operational steps depending from the detergent nature or from the condition of the crockery
    • A47L15/0026—Rinsing phases
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L15/00—Washing or rinsing machines for crockery or tableware
    • A47L15/0018—Controlling processes, i.e. processes to control the operation of the machine characterised by the purpose or target of the control
    • A47L15/0021—Regulation of operational steps within the washing processes, e.g. optimisation or improvement of operational steps depending from the detergent nature or from the condition of the crockery
    • A47L15/0031—Water discharge phases
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L2401/00—Automatic detection in controlling methods of washing or rinsing machines for crockery or tableware, e.g. information provided by sensors entered into controlling devices
    • A47L2401/07—Status of hydraulic components, e.g. open/close status of water inlet/outlet valves, operating position of water diverters
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L2501/00—Output in controlling method of washing or rinsing machines for crockery or tableware, i.e. quantities or components controlled, or actions performed by the controlling device executing the controlling method
    • A47L2501/02—Water discharge, e.g. opening or closure of discharge valve
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L2501/00—Output in controlling method of washing or rinsing machines for crockery or tableware, i.e. quantities or components controlled, or actions performed by the controlling device executing the controlling method
    • A47L2501/05—Drain or recirculation pump, e.g. regulation of the pump rotational speed or flow direction
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B40/00—Technologies aiming at improving the efficiency of home appliances, e.g. induction cooking or efficient technologies for refrigerators, freezers or dish washers

Landscapes

  • Washing And Drying Of Tableware (AREA)
  • Cleaning In General (AREA)

Description

EBHZ-78/42 29.5.1978 EBHZ-78/42 May 29, 1978

Ul/ktUl / kt

LicentiaLicentia

Patent-Verwaltungs-GmbHPatent-Verwaltungs-GmbH

Frankfurt /MainFrankfurt / Main

Verfahren zum Reinigen von Geschirr in einer Haushai tgesch irr spülmaschineMethod for cleaning dishes in a domestic dishwasher

Die Erfindung bezieht sich auf ein Verfahren zum Reinigen von Geschirr nach dem Oberbegriff des Patentanspruches 1.The invention relates to a method for cleaning dishes according to the preamble of claim 1.

Bei den bekannten Geschirrspülmaschinen sind über ein Programmsteuergerät Programme wählbar, die sich aus Vorspülen, Reinigungsgängen, Zwischenspülen, Klarspülen und Trocknen zusammensetzen. Während des Vorspülens fließen dem Spülbehälter etwa 10 bis 12 Liter Frischwasser zu, das durch die Umwälzpumpe und über Sprüheinrichtungen auf das Geschirr gesprüht und nach einiger Zeit mit den abgelösten Speiseresten abgepumpt wird. Nach dem auch ausblendbaren Vorspülen schließt sich das Reinigen an, bestehend aus der Frischwasserzufuhr von etwa 10 bis 12 Liter Kaltwasser, aus Aufheizen auf 55°C oder 65°C und Zugabe eines Reinigungsmittels, aus Umwälzen der Reinigungsflüssigkeit und vorzugsweise stufenweisen Abpumpen eines Teiles der Reinigungsflüssigkeit und Ersetzen durch Kaltwasser, wodurch die heiße Lauge allmählich abgekühlt wird und Temperaturspannungen im Geschirr vermieden werden. Am Ende des Reini-The known dishwashers have a program control device Programs can be selected consisting of pre-wash, cleaning, intermediate rinsing, rinsing and drying put together. During the pre-rinse, about 10 to 12 liters of fresh water flow into the rinsing tank, which is fed through the circulation pump and sprayed onto the dishes via spray devices and after some time pumped off with the detached food residues will. After the pre-rinse, which can also be faded out, the cleaning follows, consisting of the fresh water supply of approx 10 to 12 liters of cold water, from heating to 55 ° C or 65 ° C and adding a cleaning agent from circulating the cleaning liquid and preferably gradually pumping out part of the cleaning liquid and replacing it with cold water, whereby the hot lye is gradually cooled and temperature stresses in the dishes are avoided. At the end of the cleaning

309 8 49/0115309 8 49/0115

EBHZ-78/42 29.5.1978 EBHZ-78/42 May 29, 1978

Ul/ktUl / kt

gungszyklus wird die Lauge abgepumpt. Nach dem Entleeren des Spülbehälters beginnt das Zwischenspülen, dabei werden mit Kaltwasser in mehreren Schritten, bestehend aus jeweils einem Wassereinlaß von etwa 10 bis 12 Liter Frischwasser, Umwälzen und Abpumpen, die gelösten Schmutzteilchen vom Geschirr abgespült und mit dem Wasser abgepumpt. Zu Beginn des nach den Zwischenspülgängen sich anschließenden Klarspülzyklus fließt wieder eine Frischwassermenge von etwa 10 bis 12 Litern dem Spülbehälter zu, der ein Klarspülmittel zudosiert wird. Das mit dem Klarspülmittel versetzte Frischwasser wird auf etwa 65 bis 75 erwärmt und umgewälzt. Anschließend erfolgt das Abpumpen und es beginnt das Trocknen durch die Eigenwärme des Geschirrs und ggf. durch die zusätzliche Strahlungswärme einer elektrischen Heizung.The lye is pumped out during the cycle. After emptying the Intermediate rinsing begins with the washing compartment, with cold water in several steps, each consisting of one Water inlet of about 10 to 12 liters of fresh water, circulation and pumping out, the loosened dirt particles are rinsed off the dishes and pumped out with the water. At the beginning of the final rinse cycle that follows the intermediate rinse cycles Again an amount of fresh water of about 10 to 12 liters is added to the washing compartment, to which a rinse aid is added. That Fresh water mixed with the rinse aid is heated to around 65 to 75 and circulated. This is then done Pump out and drying begins due to the natural heat of the dishes and, if necessary, due to the additional radiant heat of a electric heating.

Die recht lange Programmdauer, der hohe Wasserverbrauch von etwa 55 bis 60 Litern und der Energiebedarf von etwa 2,5 bis 3 kWh werden als nachteilig empfunden.The rather long program duration, the high water consumption of around 55 to 60 liters and the energy requirement of around 2.5 to 3 kWh are perceived as disadvantageous.

Zur Verminderung des Wasser- und Energieverbrauches ist es bekannt (DE-AS 22 32 068), die dem Spülbehälter zum Klarspülen zugeführte Flüssigkeitsmenge gegenüber den Flüssigkeitsmengen beim Vorspülen, Reinigen oder Zwischenspülen zu reduzieren.To reduce the water and energy consumption, it is known (DE-AS 22 32 068) that the rinsing container for rinsing supplied amount of liquid compared to the amount of liquid during pre-rinsing, cleaning or intermediate rinsing to reduce.

Da sich das Spülwasser in Geschirrspülmaschinen verhältnismäßig schnell mit Essensresten od. dgl. Schmutzteilchen anreichert, ist es bekannt, in der Flüssigkeitsführung zur Sprühvorrichtung ein Filter anzuordnen, durch welches die über eine Pumpe und die Sprühvorrichtung im Bottich der Maschine umgewälzte Reinigungsflüssigkeit ständig geführt wird (DE-AS 1 628 645). Werden im Reinigungszyklus Anschmutzungen vom Geschirr gelöst, die sich beim Umwälzen des Spülwassers auf demSince the rinse water in dishwashers accumulates relatively quickly with leftover food or similar dirt particles, it is known to arrange a filter in the liquid line to the spray device, through which the over a Pump and the spray device in the tub of the machine circulated cleaning liquid is constantly guided (DE-AS 1 628 645). If soiling is removed from the dishes in the cleaning cycle solved, which is when circulating the rinse water on the

909849/0115 "Λ 909849/0115 " Λ

EBHZ-78/42 29.5.1978 EBHZ-78/42 May 29, 1978

UlAtUlAt

Filter, z.B. einem Feinsieb, absetzen, so erhöht sich der Strömungswiderstand, wodurch sich die von der Umwälzpumpe über die Spritzvorrichtung umgewälzte Wassermenge vermindert. Dadurch fällt der Spritzstrahlendruck der regelmäßig aus drehbar gelagerten Sprüharmen bestehenden Spritzvorrichtung ab. Dies führt einerseits zur Verlangsamung der Drehbewegung der Sprüharme und zur Herabsetzung der Reinigungswirkung der Sprühstrahlen und andererseits zur Zerkleinerung und Feinvarteilung (Rückverschmutzung) der am Sieb abgelagerten Speisereste. Dadurch werden zum Abspulen der im Reinigungszyklus gelösten Schmutzteilchen vom Geschirr und zu deren Ausbringen aus dem Spülbehälter mehrere Zwischenspülgänge und eine große Wassermenge notwendig.If the filter, e.g. a fine sieve, is placed on it, the flow resistance increases, which in turn reduces the amount of water from the circulation pump Reduced amount of water circulated over the spray device. As a result, the spray pressure drops regularly spraying device consisting of rotatably mounted spray arms. On the one hand, this leads to a slowing down of the rotational movement the spray arms and to reduce the cleaning effect of the spray jets and on the other hand for comminution and fine division (back contamination) of the food residues deposited on the sieve. This will allow you to unwind the Dirt particles loosened from the dishes in the cleaning cycle and several intermediate wash cycles to remove them from the washing container and a large amount of water is necessary.

Aufgabe der Erfindung ist es, ein Verfahren zum Reinigen von Geschirr in einer Haushaltgeschirrspülmaschine der eingangs genannten Art anzugeben, das ein Rückverschmutzen des Geschirrs durch im Reinigungsgang gelöste, nach dem Abpumpen der Reinigungsflüssigkeit am Sieb und im Bereich der Ablauf— wanne abgesetzte Schmutzteilchen während der nachfolgenden Spülgänge vermindert und den Wasser- und Energieverbrauch bei weiterhin gutem Reinigungsergebnis senken läßt.The object of the invention is to provide a method for cleaning dishes in a domestic dishwasher of the initially introduced Specify that the crockery will not become soiled again after it has been pumped out due to the cleaning process the cleaning fluid on the sieve and in the area of the drain Dirt particles deposited in the tub during the subsequent wash cycles are reduced and the water and energy consumption are reduced can be reduced if the cleaning result continues to be good.

Die erfindungsgemäße Lösung dieser Aufgabe ist dem Kennzeichen des Patentanspruches 1 zu entnehmen.The solution to this problem according to the invention is the characteristic of claim 1 can be found.

Durch die Erfindung erfolgt mittels einer geringen Wasserzufuhr vorzugsweise am Ende des Reinigungsganges ein Ausspülen und Abpumpen der stark mit Schmutz beladenen Reinigungsflüssigkeit und ein Ausschwemmen der sich beim Entleeren der Reinigungsflüssigkeit insbesondere in der Ablaufwanne absetzenden Schmutz- und Speisereste. Einerseits wird dadurch der Verschleppung der Schmutz- und Speisereste in Zwischenspül- und Klarspülgänge entgegengewirkt und andererseits kann durchBy means of the invention, rinsing takes place by means of a small supply of water, preferably at the end of the cleaning cycle and pumping out the cleaning liquid, which is heavily loaded with dirt, and flushing out the when emptying the Cleaning liquid, especially dirt and food residues that settle in the drain pan. On the one hand, it becomes the Carry-over of dirt and food residues in the intermediate wash and rinse cycles is counteracted and, on the other hand, can through

909849/0115 /909849/0115 /

28234332823433

EBHZ--78/42 29.5.1978 EBHZ - 78/42 May 29, 1978

Ul/ktUl / kt

die während des Ausspülvorganges stehende Umwälzpumpe keine Feinverteilung der Anschmutzung über das Geschirr stattfinden. Die für den Ausspülvorgang benötigte relativ geringe Wassermenge von etwa 1 bis 3 Liter kann mehrfach in den nachfolgenden Spülgängen eingespart werden, da besonders die schwimmenden Schmutz- und Speisereste immer wieder zum Absetzen im Bereich der Ablaufwanne neigen, falls kein Ausspülvorgang vorgesehen ist und die Spülflüssigkeit lediglich durch eine auf der Druckseite wirksame Pumpe entleert wird. Zum Abspülen des Siebes wird dabei vorzugsweise die Frischwasserzufuhr des AusspülVorganges gegen das Sieb der Ablaufwanne gerichtet.the circulating pump, which is stationary during the rinsing process, does not allow any fine distribution of the dirt over the dishes. The relatively small amount of water of about 1 to 3 liters required for the rinsing process can be used several times in the following Rinsing cycles can be saved, as especially the floating dirt and food residues keep settling in the area the drain pan tend, if no rinsing process is provided and the rinsing liquid only through one the pump operating on the pressure side is emptied. The fresh water supply is preferably used to rinse the sieve of the rinsing process directed against the sieve of the drain pan.

909849/0115909849/0115

Claims (2)

EBHZ-78/42 29.5.1978 EBHZ-78/42 May 29, 1978 Ul/ktUl / kt PatentansprücheClaims l.i Verfahren zum Reinigen von Geschirr in einer Haushaltgeschirrspülmaschine mit einem Frischwasserzulaufventil, einer Umwälz- und Entleerungspumpe sowie einem Spülbehälter mit im Spülbehälterboden angeordneter und durch ein Sieb abgedeckter Ablaufwanne, dadurch gekennzeichnet, daß nach oder gegen Ende des Abpumpens der Spülflüssigkeit zumindest eines Reinigungsganges das Frischwasserzulaufventil bei abgeschalteter Umwälzpumpe für den Zulauf von etwa 1 bis 3 Liter Wasser geöffnet, diese für einen Ausspülvorqang dienende Wassermenge durch die eingeschaltete Entleerungspumpe abgepumpt und nachfolgende Spülgänge mit reduzierter Wassermenge und/ oder ausgeblendeten Zwischenspülgängen durchgeführt werden.l.i method of cleaning dishes in one Household dishwasher with a fresh water inlet valve, a circulation and drainage pump as well as a rinsing container with arranged in the washing container base and through a Sieve covered drain pan, characterized in that after or towards the end of the pumping off of the rinsing liquid at least one cleaning cycle, the fresh water inlet valve with the circulation pump switched off for the inlet of about 1 to 3 Liters of water opened, this amount of water used for a rinsing process is pumped out through the activated drain pump and subsequent wash cycles are carried out with a reduced amount of water and / or hidden intermediate wash cycles. 2. Verfahren nach Anspruch 1, dadurch gekennzeichnet, daß die zulaufende Wassermenge über das Sieb geführt wird.2. The method according to claim 1, characterized in that the incoming amount of water is passed over the sieve. 909849/0115909849/0115 INSPECTEDINSPECTED
DE19782823493 1978-05-30 1978-05-30 METHOD FOR CLEANING DISHES IN A HOUSEHOLD DISHWASHER Withdrawn DE2823493A1 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
DE19782823493 DE2823493A1 (en) 1978-05-30 1978-05-30 METHOD FOR CLEANING DISHES IN A HOUSEHOLD DISHWASHER
SE7904078A SE7904078L (en) 1978-05-30 1979-05-09 PROCEDURE FOR CLEANING A DISH IN A HOUSEHOLD MACHINE
FR7913499A FR2427080A1 (en) 1978-05-30 1979-05-28 Sealing ring for sliding parts - has concave periphery and spring ring for holding on ribbed circumference
IT23097/79A IT1121059B (en) 1978-05-30 1979-05-29 PROCEDURE FOR CLEANING DISHES IN A DISHWASHER MACHINE FOR DOMESTIC USE

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19782823493 DE2823493A1 (en) 1978-05-30 1978-05-30 METHOD FOR CLEANING DISHES IN A HOUSEHOLD DISHWASHER

Publications (1)

Publication Number Publication Date
DE2823493A1 true DE2823493A1 (en) 1979-12-06

Family

ID=6040505

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19782823493 Withdrawn DE2823493A1 (en) 1978-05-30 1978-05-30 METHOD FOR CLEANING DISHES IN A HOUSEHOLD DISHWASHER

Country Status (4)

Country Link
DE (1) DE2823493A1 (en)
FR (1) FR2427080A1 (en)
IT (1) IT1121059B (en)
SE (1) SE7904078L (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3626351A1 (en) * 1986-08-04 1988-02-11 Licentia Gmbh METHOD FOR OPERATING A DISHWASHER
WO2005063108A1 (en) * 2003-12-23 2005-07-14 BSH Bosch und Siemens Hausgeräte GmbH Dishwasher featuring alternating pump operation
US8197608B2 (en) 2003-12-23 2012-06-12 Bsh Bosch Und Siemens Hausgeraete Gmbh Dishwasher featuring alternating pump operation
EP1699340B2 (en) † 2003-12-16 2020-06-17 BSH Hausgeräte GmbH Dishwasher with an intermediate pump mode

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2232068B2 (en) * 1972-06-30 1975-10-16 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Dishwasher with water and energy saving measures - uses less water and rinsing agent for final rinsing than for remaining program
DE2508302B1 (en) * 1975-02-26 1976-04-15 Licentia Gmbh DISHWASHER

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2232068B2 (en) * 1972-06-30 1975-10-16 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Dishwasher with water and energy saving measures - uses less water and rinsing agent for final rinsing than for remaining program
DE2508302B1 (en) * 1975-02-26 1976-04-15 Licentia Gmbh DISHWASHER

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3626351A1 (en) * 1986-08-04 1988-02-11 Licentia Gmbh METHOD FOR OPERATING A DISHWASHER
EP1699340B2 (en) † 2003-12-16 2020-06-17 BSH Hausgeräte GmbH Dishwasher with an intermediate pump mode
WO2005063108A1 (en) * 2003-12-23 2005-07-14 BSH Bosch und Siemens Hausgeräte GmbH Dishwasher featuring alternating pump operation
US8197608B2 (en) 2003-12-23 2012-06-12 Bsh Bosch Und Siemens Hausgeraete Gmbh Dishwasher featuring alternating pump operation

Also Published As

Publication number Publication date
FR2427080B3 (en) 1982-03-26
FR2427080A1 (en) 1979-12-28
IT1121059B (en) 1986-03-26
IT7923097A0 (en) 1979-05-29
SE7904078L (en) 1979-12-01

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